Screen device for casement windows



Sept. 11, 1928. 1,684,121 A. w. WENTZELL SCREEN DEVICE FOR CASEMENT WINDOWS Filed Oct. 30, 1926 2 Sheets-Sheet 1 Inventor B p wwam 4 Sept, 11, 1928. 1,684,121

A. w. WENTZELL SCREEN DEVICE FOR CASEMENT WINDOWS ;i1ed 0ct.30, 1926 2 Sheets-Sheet I Q & R. Q1 7 I r n 3" r (I 5 Q; N m 3 Inventor yzwm FUNITTED: sr

Patented Sept. 11, 1928.

ATES PATENT. OFFICE.

Amos w. wrin'rzELL, or SALEM, NEW JERSEY.

SCREEN.DEVICE FOR CASEMENT WINDOWS.

Application filed October 30, 1926. Serial No. 145,238.

well adapted to the purpose for which it is designe With the above and numerous-other objects in view, as will appear as the description proceeds, the invention resides inthe novel features of construction and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings:

Figure 1 is an inside end elevation of a casement window frame with my improved screen construction mounted therein,

Fig. 2 is an enlarged detail horizontal sec tion taken substantially on the line 2-2 of Figure 1 looking downwardly,

Fig. 3 is another enlarged detail horizontal section taken substantially on the line 33 of Figure 1 looking downwardly,

Fig. 4 is a detail perspective view of one of the locking bolts.

Referring to the drawing in detail it will be seen that the numeral 5 denotes the top of the window frame having sides 6 and a button sill 7. The usual casement windows 8 are mounted in the frame to swing outwardly thereof in the usual well-known manner. The usual or any preferred means 9 is illustrated for holding the windows 8 openedror closed in the well-known manner.

The main frame of the screen structure is denoted by the letter F and is rectangular in formation and is held within the easement window frames by means of screws 10 or like fastening elements. This frame F is formed of sheet steel to provide atop rail 11 and a bottom rail 12 and side rails 14. These rails are of L-shaped cross section and are hollow as may be seen in Figures 2 and 3. The side rails 14 have their inside edges formed with tenons 15 extending longitudinally thereof. The outside faces of the side rails and the upper halves thereof are provided with recesses 16 for receiving portions of a foraminous sheet 17 which is held in place by bars 18 shaped to fill the recesses 16 and held in place byscrews 19. A. center rail 20 extends Vertically between the centers of the top and bottom rails 11 and 12 and is formed at its opposite edges with tenons 15. Two sashes S'are slidably mounted between the side rails 14 and the center rail 20. Each sash includes a rectangular iframe formed of sheet steel a nd the sides 21 thereof have their outer edges formed with longitudinally extending mortices 22 for receiving tenons 15. -These tenons' 15 hold the sashes S in placeand allow ,themQto slide to a raisedposition such as is shown in the right hand portion of Figure 1 so that access may be had to the casement windows 8 for opening or closing the same. The frames of the'sashes S have mounted therein sheets of foraminous material indicated at 24. The rails of the frameof each sash S are provided withrecesses 25 for receiving the edges of the sheet 24 and blocks 26 which are held in place by screws 27. The lower rails of the frames of the sashes S are provided with hand holds 28so that these sashes S maybe easily lowered and raised. In order to lock the sashes in their lowered positions in order that they may not be raised from the outside I have provided a pair of bolts B one in each side rail 14 adjacent the lower ends thereof as is clearly illustrated particularly in Figures 2 and 3. Each bolt B includes the bolt proper 29 whichis slidable through an opening in the lower portion of the tenon 15 of the respective rails 14. At one end of the bolt proper 29 there is provided a lateral eXtension 30 which terminates within the flange,- like portion 31 of the respective rail 14 and has a shank 32 extending parallel with the bolt proper 29 and through an opening 33 in the portion 31. Springs 34 are mounted between the extensions 30 and one side of the respective rail 14 so as to normally .hold the bolts proper 29 in an extended position for engaging in an opening 35 provided in the respective mortice 22' thus preventing the raising of the sash. Obviously, the shank 32 may be pushed inwardly torelease the bolt and allow the sash to be raised.

It is thought that the construction, utility, and advantages of my invention will now be clearly understood and appreciated by those skilled in this art without a more extended explanation. It is desired, howover, to point out that the structure is sturdy, strong and durable and is capable of allowing the necessary replacement at a minimum cost particularly in the renewal of the screened sheets as may become necessary from time to time through Wear, rot,

and breakage. The present embodiment: of the invention has been disclosed in detail merely by way of example since in actual practice it attainsthe-features of advantage enumerated as desirable in the statement of the invention: and theabove description. It will be apparent that changes in the details of construction. and in-the combination and arrangement of parts maybe resorted to without departing from the spirit or scope ofthe invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is l. A screen structure of the class de- .cri.bed including 'aframe having hollow side rails provided with hollow tenons e tend-ing inwardlytherefrom and longitudinally: thereof and lateral hollow-flanges on the sides thereof, a bolt slid-able through an opening in one ofthe tenons and having a laterally extending arm in the hollow flange, a pin projecting from-the arm,'a spring on the pin impinging against theinterior of the hollow flange and the side rail for the purpose of holding the bolt normally extended through the opening in the tenon, said flange having an opening, a knob on the arm projecting through the opening,-'and 

